Digital Inputs - Unitronics V200-18-E5B User Manual

Snap-in I/O Modules
Earthing the product
To maximize system performance, avoid electromagnetic interference as follows:
▪
Use a metal cabinet.
▪
Connect the 0V and functional ground points (if exist) directly to the earth ground of the system.
▪
Use the shortest, less than 1m (3.3 ft.) and thickest, 2.08mm² (14AWG) min, wires possible.

Digital Inputs

Each group of 9 inputs has a common signal. Each group can be used as either pnp (source) or npn (sink), when appropriately wired as shown in
the following figures.
Inputs I0 and I2 can be used as normal digital inputs, as high-speed counters, or as part of a shaft encoder.
Inputs I1 and I3 can be used as normal digital inputs, as high-speed counter resets, or as part of a shaft encoder.
npn (sink) digital input wiring
npn (sink) high-speed counter
npn (sink) shaft encoder wiring
Unitronics
Inputs I0, I1, and I2, I3 can be used as shaft encoders as shown below.
pnp (source) digital input wiring
pnp (source) high-speed counter
pnp (source) shaft encoder wiring
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